Value of conventional and functional MR in the diagnosis of orbital mucosa-associated lymphoid tissue lymphoma / 实用放射学杂志
Journal of Practical Radiology
; (12): 1510-1512,1524, 2016.
Article
en Zh
| WPRIM
| ID: wpr-605512
Biblioteca responsable:
WPRO
ABSTRACT
Objective To evaluate the role of conventional and functional MR in the diagnosis of orbital mucosa-associated lymphoid tissue lymphoma (MALToma).Methods Twenty-two patients with pathologically confirmed orbital MALToma were enrolled in our study.The number,location,morphology,involvement of surrounding structure and imaging features were evaluated.Apparent diffusion coefficient (ADC) values derived from diffusion weighted imaging and time-intensity curve (TIC)pattern derived from dynamic contrast enhanced MRI were assessed. Results Orbital MALToma occurred unilaterally in 1 7 cases and bilaterally in 5 cases.Anterior orbit preseptal region was involved most frequently (20 cases),followed by intraconal(19 cases),extraxonal (17 cases)and lacrimal fossa (12 cases)regions.Most cases showed as homogeneously iso-intensity on both T1 and T2 weighted images.Mean ADC value of the lesions was (0.61 ± 0.08)× 10 -3 mm2/s.A washout-type TIC pattern was observed in 1 5 cases,while plateau pattern was found in 7 cases.Conclusion Conventional MRI can assist in describing the extent,while the functional MRI can quantitatively reflect the histo-pathological features of orbital MALToma.Combination of conventional and functional MRI can help the diagnosis of orbital MALToma.
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1
Base de datos:
WPRIM
Tipo de estudio:
Diagnostic_studies
Idioma:
Zh
Revista:
Journal of Practical Radiology
Año:
2016
Tipo del documento:
Article